caa a22 4500 445368926 CHVBK 20180317142940.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s00340-010-4336-8 doi (NATIONALLICENCE)springer-10.1007/s00340-010-4336-8 Faraday rotation spectrometer with sub-second response time fordetection of nitric oxide using a cw DFB quantum cascade laser at5.33 μm [Elektronische Daten] [P. Kluczynski, S. Lundqvist, J. Westberg, O. Axner] A Faraday modulation spectrometer for sensitive and fast detection of nitric oxide at 5.33 μm utilizing a room temperature continuous wave distributed feedback quantum cascade laser and a Peltier cooled MCT detector is presented. The magnetic field was modulated at 7.4kHz whereas the laser wavelength was scanned at 20Hz across the most favorable rotational-vibrational transition for FAMOS, Q 3/2(3/2), at 5.33 μm. Using a 15 cm optical path and lineshape fitting, the spectrometer provides a detection limit of 4.5 ppb for a response time of 1 s. An Allan variance analysis demonstrates that the system has an excellent stability, up to several hours of operation. Springer-Verlag, 2010 Kluczynski P. IIA SLA R&D, Siemens AB, Box 14153, 400 20, Göteborg, Sweden aut Lundqvist S. IIA SLA R&D, Siemens AB, Box 14153, 400 20, Göteborg, Sweden aut Westberg J. Department of Physics, Umeå University, 907 81, Umeå, Sweden aut Axner O. Department of Physics, Umeå University, 907 81, Umeå, Sweden aut Applied Physics B Springer-Verlag 103/2(2011-05-01), 451-459 0946-2171 103:2<451 2011 103 340 https://doi.org/10.1007/s00340-010-4336-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-010-4336-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kluczynski P. IIA SLA R&D, Siemens AB, Box 14153, 400 20, Göteborg, Sweden aut NATIONALLICENCE 700 1- Lundqvist S. IIA SLA R&D, Siemens AB, Box 14153, 400 20, Göteborg, Sweden aut NATIONALLICENCE 700 1- Westberg J. Department of Physics, Umeå University, 907 81, Umeå, Sweden aut NATIONALLICENCE 700 1- Axner O. Department of Physics, Umeå University, 907 81, Umeå, Sweden aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 103/2(2011-05-01), 451-459 0946-2171 103:2<451 2011 103 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer